Sleeping bag



FIG. 1 is a top perspective view of a sleeping bag showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a left side elevational view thereof, with a vent shown in an open position;

FIG. 5 is an end view;

FIG. 6 is another end view thereof, opposite the end shown in FIG. 5;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is an enlarged fragmentary top view thereof shown with a bottom vent in an open position.

The broken lines in FIGS. 1–8 represent stitching. 

The ornamental design for a sleeping bag, as shown and described. 